M54HCT273 [STMICROELECTRONICS]

OCTAL D TYPE FLIP FLOP WITH CLEAR; 八路D型触发器与Clear


型号：	M54HCT273
厂家：	ST
描述：	OCTAL D TYPE FLIP FLOP WITH CLEAR 八路D型触发器与Clear 触发器
文件：	总10页 (文件大小：246K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

M54HCT273

M74HCT273

OCTAL D TYPE FLIP FLOP WITH CLEAR

HIGH SPEED

f_MAX= 80 MHz (TYP.) AT V_CC= 5 V

LOW POWER DISSIPATION

I_CC= 4 µA (MAX.) AT T_A= 25 °C

COMPATIBLE WITH TTL OUTPUTS

V_IH= 2V (MIN.) V_IL= 0.8V (MAX)

OUTPUT DRIVE CAPABILITY

10 LSTTL LOADS

SYMMETRICAL OUTPUT IMPEDANCE

IOH = I_OL= 4 mA (MIN.)

BALANCED PROPAGATION DELAYS

t_PLH= t_PHL

PIN AND FUNCTION COMPATIBLE WITH

B1R

(Plastic Package)

F1R

(Ceramic Package)

M1R

(Micro Package)

C1R

(Chip Carrier)

54/74LS273

ORDER CODES :

DESCRIPTION

M54HCT273F1R

M74HCT273M1R

M74HCT273B1R

M74HCT273C1R

The M54/74HCT273 isa high speed CMOS OCTAL

D-TYPE FLIP FLOP WITH CLEAR fabricated in sili-

con gate C²MOS technology. It has the same high

speed performance of LSTTL combined with true

CMOS low power consumption. Information signals

applied to D inputs are transferred to the Q outputs

on the positive-going edge of the clock pulse.

When the CLEAR input is held low, the Q output are

in the low logic level independent of the other inputs.

All inputs are equipped with protection circuits

against static discharge and transient excess volt-

age. This integrated circuit has input and output

characteristics that are fully compatible with 54/74

LSTTL logic families. M54/74HCT devices are de-

signed to directly interface HSC²MOS systems with

TTL and NMOS components. They are also plug in

replacements for LSTTL devices giving a reduction

of power consumption. All inputs are equipped with

protection circuits against static discharge and tran-

sient excess voltage.

PIN CONNECTIONS (top view)

INPUT AND OUTPUT EQUIVALENT CIRCUIT

NC =

No Internal

Connection

February 1993

1/10

M54/M74HCT273

PIN DESCRIPTION

IEC LOGIC SYMBOL

PIN No

SYMBOL

NAME AND FUNCTION

CLEAR

Master Reset Input

(Active LOW)

2, 5, 6, 9,

12, 15, 16,

Q0 to Q7

D0 to D7

CLOCK

Flip Flop Outputs

3, 4, 7, 8,

13, 14, 17,

Data Inputs

Clock Input (LOW to

HIGH, Edge Triggered)

GND

V_CC

Ground (0V)

Positive Supply Voltage

TRUTH TABLE

INPUTS

CLOCK

OUTPUS

FUNCTION

CLEAR

NO CHANGE

X: Don’t Care

LOGIC DIAGRAM

2/10

M54/M74HCT273

ABSOLUTE MAXIMUM RATINGS

Symbol

V_CC

V_I

Parameter

Value

Unit

Supply Voltage

-0.5 to +7

-0.5 to V_CC+ 0.5

± 20

DC Input Voltage

V_O

DC Output Voltage

I_IK

DC Input Diode Current

DC Output Diode Current

DC Output Source Sink Current Per Output Pin

^oC

I_OK

± 20

I_O

± 25

I_CCor I_GNDDC V_CCor Ground Current

± 50

P_D

T_stg

T_L

Power Dissipation

500 (*)

Storage Temperature

Lead Temperature (10 sec)

-65 to +150

300

^oC

Absolute MaximumRatingsare those values beyond whichdamage tothe device may occur. Functional operation under these condition isnotimplied.

(*) 500 mW: 65 ^oC derate to 300 mW by 10mW/^oC: 65 ^oC to 85 ^oC

RECOMMENDED OPERATING CONDITIONS

Symbol

V_CC

V_I

Parameter

Value

4.5 to 5.5

0 to V_CC

Unit

Supply Voltage

Input Voltage

Output Voltage

V_O

T_op

Operating Temperature: M54HC Series

M74HC Series

-55 to +125

-40 to +85

^oC

t_r, t_f

Input Rise and Fall Time (V_CC= 4.5 to 5.5V)

0 to 500

3/10

M54/M74HCT273

DC SPECIFICATIONS

Test Conditions

V_CC

Value

T_A= 25 ^oC

54HC and 74HC

-40 to 85 ^oC -55 to 125 ^oC

Symbol

V_IH

Parameter

Unit

74HC

54HC

(V)

Min. Typ. Max. Min. Max. Min. Max.

High Level Input

Voltage

4.5

2.0

5.5

V_IL

Low Level Input

Voltage

4.5

0.8

5.5

V_OH

High Level

V_I= I_O=-20 µA

4.4

4.5

4.4

Output Voltage

V_IH

V_IL

4.5

I_O=-4.0 mA 4.18 4.31

4.13

4.10

V_OL

Low Level Output

Voltage

V_I= I_O= 20 µA

V_IH

V_IL

0.0

0.1

0.33

±1

0.1

0.4

±1

4.5

5.5

I_O= 4.0 mA

0.17 0.26

I_I

Input Leakage

Current

V_I= V_CCor GND

±0.1

µA

I_CC

Quiescent Supply 5.5 V_I= V_CCor GND

Current

∆I_CC

Additional worst

case supply

current

5.5

Per Input pin

V_I= 0.5V or

V_I= 2.4V

2.0

2.9

3.0

Other Inputs at

V_CCor GND

I_O= 0

4/10

M54/M74HCT273

AC ELECTRICAL CHARACTERISTICS (C_L= 50 pF, Input t_r= t_f= 6 ns)

Test Conditions

Value

-40 to 85 ^oC -55 to 125 ^oC

74HC 54HC

T_A= 25 ^oC

54HC and 74HC

Symbol

Parameter

Unit

V_CC

(V)

4.5

Min. Typ. Max. Min. Max. Min. Max.

t_TLH

t_THL

t_PLH

t_PHL

Output Transition

Time

Propagation

Delay Time

(CLOCK - Q)

Propagation

Delay Time

(CLEAR - Q)

4.5

t_PLH

t_PHL

f_MAX

C_IN

Maximum Clock

Frequency

Input Capacitance

MHz

C_PD(*) Power Dissipation

Capacitance

(*) C_PDisdefined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.

(Refer to Test Circuit). Average operting current can be obtained by the following equation. I_CC(opr) = C_PD• V_CC• f_IN+ I_CC/8 (per Flip FLop), and the

total CPD when n pcs of FlipFlop operate can be gained by the following equations: CPD (total) = 32 + 11 x n

SWITCHING CHARACTERISTICS TEST WAVEFORM

TEST CIRCUIT I_CC(Opr.)

5/10

M54/M74HCT273

Plastic DIP20 (0.25) MECHANICAL DATA

inch

TYP.

DIM.

MIN.

TYP.

MAX.

MIN.

0.010

0.055

MAX.

0.254

1.39

1.65

0.065

0.45

0.25

0.018

0.010

25.4

1.000

8.5

2.54

22.86

0.335

0.100

0.900

7.1

0.280

0.155

3.93

3.3

0.130

1.34

0.053

P001J

6/10

M54/M74HCT273

Ceramic DIP20 MECHANICAL DATA

inch

DIM.

MIN.

TYP.

MAX.

MIN.

TYP.

MAX.

0.984

0.307

7.8

3.3

0.130

0.900

0.5

1.78

0.020

0.070

22.86

2.29

0.4

2.79

0.55

1.52

0.31

1.27

0.090

0.016

0.050

0.009

0.020

0.110

0.022

0.060

0.012

0.050

1.27

0.22

0.51

4° (min.), 15° (max.)

7.9

8.13

5.71

0.311

0.320

0.225

P057H

7/10

M54/M74HCT273

SO20 MECHANICAL DATA

inch

TYP.

DIM.

MIN.

TYP.

MAX.

2.65

0.20

2.45

0.49

0.32

MIN.

MAX.

0.104

0.007

0.096

0.019

0.012

0.10

0.004

0.35

0.23

0.013

0.009

0.50

0.020

45° (typ.)

12.60

10.00

13.00

10.65

0.496

0.393

0.512

0.419

1.27

0.050

0.450

11.43

7.40

0.50

7.60

1.27

0.75

0.291

0.19

0.299

0.050

0.029

8° (max.)

P013L

8/10

M54/M74HCT273

PLCC20 MECHANICAL DATA

inch

DIM.

MIN.

9.78

8.89

4.2

TYP.

MAX.

10.03

9.04

MIN.

0.385

0.350

0.165

TYP.

MAX.

0.395

0.356

0.180

4.57

2.54

0.56

0.100

0.022

7.37

8.38

0.290

0.330

0.004

1.27

5.08

0.38

0.050

0.200

0.015

0.101

1.27

1.14

0.050

0.045

P027A

9/10

M54/M74HCT273

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the

consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No

license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specificationsmentioned

in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.

SGS-THOMSON Microelectronicsproductsare notauthorized foruse ascritical componentsin life support devices or systems without express

written approval of SGS-THOMSON Microelectonics.

SGS-THOMSON Microelectronics GROUP OF COMPANIES

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10/10

M54HCT273 [STMICROELECTRONICS]

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